latest

Makefile

@@ -9,16 +9,26 @@ BUILDARCH := $(shell uname -m)
 FN := fediverse-archive
 IMAGENAME := sneak/$(FN)
 
+UNAME_S := $(shell uname -s)
+
 GOLDFLAGS += -X main.Version=$(VERSION)
 GOLDFLAGS += -X main.Buildtime=$(BUILDTIME)
 GOLDFLAGS += -X main.Builduser=$(BUILDUSER)@$(BUILDHOST)
 GOLDFLAGS += -X main.Buildarch=$(BUILDARCH)
-GOFLAGS = -ldflags "-linkmode external -extldflags -static $(GOLDFLAGS)"
+
+# osx can't statically link apparently?!
+ifeq ($(UNAME_S),Darwin)
+	GOFLAGS := -ldflags "$(GOLDFLAGS)"
+endif
+
+ifneq ($(UNAME_S),Darwin)
+	GOFLAGS = -ldflags "-linkmode external -extldflags -static $(GOLDFLAGS)"
+endif
 
 default: rundebug
 
 rundebug: build
-	./$(FN) -debug
+	DEBUG=1 ./$(FN)
 
 run: build
 	./$(FN)

archiver.go

@@ -1,31 +1,25 @@
 package main
 
-import (
-	"context"
-	"time"
-	//"github.com/bitly/go-simplejson"
-)
+import "time"
 
 type InstanceHostName string
 
-type Archiver struct {
+type TootArchiver struct {
 	locator   *InstanceLocator
 	instances map[InstanceHostName]*Instance
 	startup   *time.Time
-	ctx       context.Context
 }
 
-func NewArchiver(ctx context.Context) *Archiver {
-	a := new(Archiver)
-	a.ctx = ctx
+func NewTootArchiver() *TootArchiver {
+	a := new(TootArchiver)
 	return a
 }
 
-func (a *Archiver) Uptime() time.Duration {
+func (a *TootArchiver) Uptime() time.Duration {
 	return time.Since(*a.startup)
 }
 
-func (a *Archiver) RunForever() int {
+func (a *TootArchiver) RunForever() int {
 	t := time.Now()
 	a.startup = &t
 	a.locator = NewInstanceLocator()

instance.go

@@ -1,17 +1,16 @@
 package main
 
-import (
-	"encoding/json"
-	"fmt"
-	"github.com/rs/zerolog/log"
-	"net/http"
-	"strings"
-	"time"
-)
+import "encoding/json"
+import "fmt"
+import "net/http"
+import "strings"
+import "time"
+
+import "github.com/rs/zerolog/log"
 
 const NodeInfoSchemaVersionTwoName = "http://nodeinfo.diaspora.software/ns/schema/2.0"
 
-const NODE_TIMEOUT = time.Second * 30
+const NODE_TIMEOUT = time.Second * 10
 
 type ServerImplementation int
 

locator.go

@@ -1,12 +1,12 @@
 package main
 
-import (
-	"encoding/json"
-	"github.com/rs/zerolog/log"
-	"net/http"
-	"sync"
-	"time"
-)
+import "encoding/json"
+import "fmt"
+import "net/http"
+import "sync"
+import "time"
+
+import "github.com/rs/zerolog/log"
 
 const mastodonIndexUrl = "https://instances.social/list.json?q%5Busers%5D=&q%5Bsearch%5D=&strict=false"
 
@@ -104,43 +104,64 @@ func (i *InstanceLocator) addInstance(hostname string) {
 }
 
 func (i *InstanceLocator) Locate() {
-	log.Debug().Str("lastmastodonupdate", i.mastodonIndexLastRefresh.Format(time.RFC3339)).Send()
-	log.Debug().Str("lastpleromaupdate", i.pleromaIndexLastRefresh.Format(time.RFC3339)).Send()
+	log.Debug().
+		Str("lastmastodonupdate", i.mastodonIndexLastRefresh.Format(time.RFC3339)).
+		Send()
+
+	log.Debug().
+		Str("lastpleromaupdate", i.pleromaIndexLastRefresh.Format(time.RFC3339)).
+		Send()
+
 	i.locateMastodon()
+
 	i.locatePleroma()
+
 	time.Sleep(120 * time.Second)
+
 	i.instanceReport()
 }
 
-func (i *InstanceLocator) instanceReport() {
-	var upInstances int = 0
-	var identifiedInstances int = 0
-	var totalInstances int = 0
+type InstanceLocatorReport struct {
+	up         uint
+	identified uint
+	total      uint
+}
 
-	totalInstances = len(i.instances)
+func (r *InstanceLocatorReport) String() string {
+	return fmt.Sprintf("up=%d identified=%d total=%d", r.up, r.identified, r.total)
+}
+
+func (i *InstanceLocator) NumInstances() uint {
+	return i.instanceReport().total
+}
+
+func (i *InstanceLocator) instanceReport() *InstanceLocatorReport {
+	r := new(InstanceLocatorReport)
+
+	r.total = uint(len(i.instances))
 
 	for _, elem := range i.instances {
 		if elem.identified == true {
-			identifiedInstances = identifiedInstances + 1
-		}
+			r.identified = r.identified + 1
 		}
 
-	for _, elem := range i.instances {
 		if elem.up == true {
-			upInstances = upInstances + 1
+			r.up = r.up + 1
 		}
 	}
 
-	log.Info().
-		Int("up", upInstances).
-		Int("total", totalInstances).
-		Int("identified", identifiedInstances).
+	log.Debug().
+		Uint("up", r.up).
+		Uint("total", r.total).
+		Uint("identified", r.identified).
 		Msg("instance report")
+
+	return r
 }
 
 func (i *InstanceLocator) locateMastodon() {
 	var netClient = &http.Client{
-		Timeout: time.Second * 20,
+		Timeout: NODE_TIMEOUT,
 	}
 	resp, err := netClient.Get(mastodonIndexUrl)
 	defer resp.Body.Close()
@@ -168,7 +189,7 @@ func (i *InstanceLocator) locateMastodon() {
 
 func (i *InstanceLocator) locatePleroma() {
 	var netClient = &http.Client{
-		Timeout: time.Second * 20,
+		Timeout: NODE_TIMEOUT,
 	}
 	resp, err := netClient.Get(pleromaIndexUrl)
 	if err != nil {

main.go

@@ -1,13 +1,11 @@
 package main
 
-import (
-	"context"
-	"flag"
-	"github.com/rs/zerolog"
-	"github.com/rs/zerolog/log"
-	"golang.org/x/crypto/ssh/terminal"
-	"os"
-)
+import "os"
+import "sync"
+
+import "github.com/rs/zerolog"
+import "github.com/rs/zerolog/log"
+import "golang.org/x/crypto/ssh/terminal"
 
 func main() {
 	os.Exit(app())
@@ -19,16 +17,33 @@ func app() int {
 		log.Logger = log.Output(zerolog.ConsoleWriter{Out: os.Stderr})
 	}
 
-	debug := flag.Bool("debug", false, "sets log level to debug")
-	flag.Parse()
-
 	identify()
 
 	zerolog.SetGlobalLevel(zerolog.InfoLevel)
-	if *debug {
+	if os.Getenv("DEBUG") != "" {
 		zerolog.SetGlobalLevel(zerolog.DebugLevel)
 	}
 
-	mainContext := context.Background()
-	return NewArchiver(mainContext).RunForever()
+	archiver := NewTootArchiver()
+
+	api := new(TootArchiverAPIServer)
+	api.archiver = archiver
+
+	var wg sync.WaitGroup
+
+	// start api webserver goroutine
+	wg.Add(1)
+	go func() {
+		api.Serve()
+		wg.Done()
+	}()
+
+	wg.Add(1)
+	go func() {
+		archiver.RunForever()
+		wg.Done()
+	}()
+
+	wg.Wait()
+	return 0
 }

webserver.go

@@ -0,0 +1,82 @@
+package main
+
+import "fmt"
+import "os"
+import "time"
+import "net/http"
+
+import "github.com/rs/zerolog/log"
+import "github.com/gin-gonic/gin"
+import "github.com/dn365/gin-zerolog"
+
+type TootArchiverAPIServer struct {
+	archiver *TootArchiver
+}
+
+func (a *TootArchiverAPIServer) Serve() {
+	if a.archiver == nil {
+		panic("must have archiver from which to serve stats")
+	}
+	s := a.getServer()
+	err := s.ListenAndServe()
+	if err != nil {
+		log.Fatal().Msg("webserver failure: " + err.Error())
+		return
+	}
+}
+
+func (a *TootArchiverAPIServer) getRouter() *gin.Engine {
+	if os.Getenv("DEBUG") == "" {
+		gin.SetMode(gin.ReleaseMode)
+	}
+
+	// empty router
+	r := gin.New()
+
+	// wrap panics:
+	r.Use(gin.Recovery())
+
+	// attach logger middleware
+	r.Use(ginzerolog.Logger("gin"))
+
+	r.GET("/.well-known/healthcheck.json", func(c *gin.Context) {
+		c.JSON(200, gin.H{
+			"status": "ok",
+			"now":    time.Now().UTC().Format(time.RFC3339),
+			"uptime": a.archiver.Uptime().String(),
+		})
+	})
+
+	r.GET("/", func(c *gin.Context) {
+		c.JSON(200, gin.H{
+			// FIXME add more stuff here
+			"status":    "ok",
+			"now":       time.Now().UTC().Format(time.RFC3339),
+			"uptime":    a.archiver.Uptime().String(),
+			"instances": a.archiver.locator.NumInstances(),
+		})
+	})
+	// FIXME add more status routes here
+
+	return r
+}
+
+func (a *TootArchiverAPIServer) getServer() *http.Server {
+	r := a.getRouter()
+
+	port := "8080"
+	if os.Getenv("PORT") != "" {
+		port = os.Getenv("PORT")
+	}
+
+	log.Info().Str("port", port).Msg("starting webserver")
+
+	s := &http.Server{
+		Addr:           fmt.Sprintf(":%s", port),
+		Handler:        r,
+		ReadTimeout:    10 * time.Second,
+		WriteTimeout:   10 * time.Second,
+		MaxHeaderBytes: 1 << 20,
+	}
+	return s
+}